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Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "A number of small fixes:
   - fix loading of the translation table base registers for LPAE
   - add two new syscalls to the ARM syscall tables"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: wire up memfd_create syscall
  ARM: wire up getrandom syscall
  ARM: 8114/1: LPAE: load upper bits of early TTBR0/TTBR1
Linus Torvalds 11 years ago
parent
commit
ad1f5caf34

+ 1 - 1
arch/arm/include/asm/unistd.h

@@ -19,7 +19,7 @@
  * This may need to be greater than __NR_last_syscall+1 in order to
  * account for the padding in the syscall table
  */
-#define __NR_syscalls  (384)
+#define __NR_syscalls  (388)
 
 /*
  * *NOTE*: This is a ghost syscall private to the kernel.  Only the

+ 2 - 0
arch/arm/include/uapi/asm/unistd.h

@@ -410,6 +410,8 @@
 #define __NR_sched_getattr		(__NR_SYSCALL_BASE+381)
 #define __NR_renameat2			(__NR_SYSCALL_BASE+382)
 #define __NR_seccomp			(__NR_SYSCALL_BASE+383)
+#define __NR_getrandom			(__NR_SYSCALL_BASE+384)
+#define __NR_memfd_create		(__NR_SYSCALL_BASE+385)
 
 /*
  * The following SWIs are ARM private.

+ 2 - 0
arch/arm/kernel/calls.S

@@ -393,6 +393,8 @@
 		CALL(sys_sched_getattr)
 		CALL(sys_renameat2)
 		CALL(sys_seccomp)
+		CALL(sys_getrandom)
+/* 385 */	CALL(sys_memfd_create)
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted

+ 3 - 4
arch/arm/mm/proc-v7-3level.S

@@ -146,12 +146,11 @@ ENDPROC(cpu_v7_set_pte_ext)
 	mov	\tmp, \ttbr1, lsr #(32 - ARCH_PGD_SHIFT)	@ upper bits
 	mov	\ttbr1, \ttbr1, lsl #ARCH_PGD_SHIFT		@ lower bits
 	addls	\ttbr1, \ttbr1, #TTBR1_OFFSET
-	mcrr	p15, 1, \ttbr1, \zero, c2			@ load TTBR1
+	adcls	\tmp, \tmp, #0
+	mcrr	p15, 1, \ttbr1, \tmp, c2			@ load TTBR1
 	mov	\tmp, \ttbr0, lsr #(32 - ARCH_PGD_SHIFT)	@ upper bits
 	mov	\ttbr0, \ttbr0, lsl #ARCH_PGD_SHIFT		@ lower bits
-	mcrr	p15, 0, \ttbr0, \zero, c2			@ load TTBR0
-	mcrr	p15, 1, \ttbr1, \zero, c2			@ load TTBR1
-	mcrr	p15, 0, \ttbr0, \zero, c2			@ load TTBR0
+	mcrr	p15, 0, \ttbr0, \tmp, c2			@ load TTBR0
 	.endm
 
 	/*